Added Java intermediate 41

JamesMcNee · JamesMcNee · commit 84a60100fb39 · 2015-03-18T19:38:19.000Z
diff --git a/Java_Intermediate/41_javaIntermediate.java b/Java_Intermediate/41_javaIntermediate.java
@@ -0,0 +1,62 @@
+import java.io.*;
+import java.net.*;
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+
+public class Server extends JFrame {
+	
+	private JTextField userText;
+	private JTextArea chatWindow;
+	private ObjectOutputStream output;
+	private ObjectInputStream input;
+	private ServerSocket server;
+	private Socket connection;
+	
+	//constructor
+	public Server(){
+		super("Buckys Instant Messenger");
+		userText = new JTextField();
+		userText.setEditable(false);
+		userText.addActionListener(
+			new ActionListener(){
+				public void actionPerformed(ActionEvent event){
+					sendMessage(event.getActionCommand());
+					userText.setText("");
+				}
+			}
+		);
+		add(userText, BorderLayout.NORTH);
+		chatWindow = new JTextArea();
+		add(new JScrollPane(chatWindow));
+		setSize(300, 150); //Sets the window size
+		setVisible(true);
+	}
+	
+	public void startRunning(){
+		try{
+			server = new ServerSocket(6789, 100); //6789 is a dummy port for testing, this can be changed. The 100 is the maximum people waiting to connect.
+			while(true){
+				try{
+					//Trying to connect and have conversation
+					waitForConnection();
+					setupStreams();
+					whileChatting();
+				}catch(EOFException eofException){
+					showMessage("\n Server ended the connection! ");
+				} finally{
+					closeCrap();
+				}
+			}
+		} catch (IOException ioException){
+			ioException.printStackTrace();
+		}
+	}
+	//wait for connection, then display connection information
+	private void waitForConnection() throws IOException{
+		showMessage(" Waiting for someone to connect... \n");
+		connection = server.accept();
+		showMessage(" Now connected to " + connection.getInetAddress().getHostName());
+	}
+	
+}
